GENERAL AR 2156921 - Caterpillar

Illustration 1 g02020915
(1) Four Way button (2) "OK" button (3) Back button (5) Return to main menu button (6) Display menuThe monitoring system display can display events and codes in the service mode. The codes and events are reported by the ECM.The diagnostic codes and events can be viewed in the service mode. Access the service mode by using the following steps. The events, active codes, and logged codes will now be displayed. The codes and events can be viewed in more detail by pressing the "OK" button again. View all codes and events on the list by pressing the Four way button (1). Exit the service mode by pressing the main menu button (5) .
Go to the main menu by pressing the menu button (5) .The main menu (6) will appear on the display module.
Scroll to "Service" with the Four Way button (1) .
Press the "OK" button (2) to view the service menu.
From the service menu, access the diagnostic mode with the "OK" button (2) .The events, active codes, and logged codes will now be displayed.View the codes and events in more detail by pressing the "OK" button (2) again.View all codes and events on the list by pressing the Four Way button (1) .
Press the main menu button (5) to exit the service mode.The following list contains some of the functions of the monitoring system display:
The diagnostic codes of the ECM systems are displayed.
The settings for the ECM are displayed.
The machine status parameters are shown in real time.
The number of occurrences and the clock hour of the first occurrence and the last occurrence are displayed for each of the events, active codes, and logged codes.
The definition for each logged diagnostic code and each event is displayed.Troubleshooting Procedures
The diagnostic codes can be viewed with the monitoring system display or with Cat® Electronic Technician (Cat ET) Service Tool.Event Identifier (EID)
An event indicates a reading that is outside of normal operating ranges but within component limits. The data is seen as incorrect by the ECM but there is no fault in the component. An example might be a high oil temperature reading. The event will be identified by the ECM, the EID, and a time stamp.Component Identifier (CID)
The component identifier is a four-digit number that represents a particular component on the machine. For example, each solenoid that is connected to the Machine ECM has a number that is assigned. Refer to Troubleshooting, "Diagnostic Code List" for a list of all of the components of the machine control system.Note: CIDs range from 1 to 65534. Therefore, there is a possibility that a CID could be five digits.Failure Mode Identifier (FMI)
The codes for the Failure Mode Identifier are defined by SAE standards. The following table contains a Caterpillar version of definitions.
Table 1
Failure Mode Identifier    
FMI    Description of Failure    
00     Data valid but above normal operating range    
01     Data valid but below normal operating range    
02     Data erratic, intermittent, or incorrect    
03